Fails to start games if a broken toc file is present

[orbea]

OS: Slackware64-current
RetroArch-2017.01.03_faf939856_master-x86_64-1_git
beetle-psx-libretro-2016.12.23_aafafde_master-x86_64-1_git

If starting a game with a working cue file from the command line using a full path or from the RetroArch menu if a toc file is present which is either broken or in a non-supported format (Sometimes people download these).

To easily reproduce this.

touch game.toc

Works:

• retroarch -L mednafen_psx_libretro.so game.cue

Doesn't work:

• retroarch -L mednafen_psx_libretro.so ./game.cue
• retroarch -L mednafen_psx_libretro.so /some/path/game.cue
• Starting the game from the menu.

Attempt to read LBA 16, >= LBA 0
CDIF Raw Read error
terminate called after throwing an instance of 'MDFN_Error'
Aborted

Removing the toc file is an easy work around, but as this can lead to unexpected failures it should just ignore any toc file that is not in the correct format. Upstream mednafen does not have this problem.

Beetle-saturn also has this problem.
libretro/beetle-saturn-libretro#1